Emergency Essentials Freeze Dried Mushroom Slices - 4 oz Packaged with an oxygen absorber in a #10 stainless steel can that is double-enameled to prevent aging and rust Shelf life of 25+ years depending on storage conditions - Store in a cool, dry place for maximum shelf life For best flavor and nutrition, keep cans constantly stored at 70 or lower. Once opened, keep in air tight containers in dark cool places Excellent for pizza, pork and beef dishes, gravies, casseroles, salads, and soups Food you can trust from a nationally recognized leader in emergency preparedness